This backpack is so cheerful and cute! This is an Amazon or generic canvas large-capacity backpack with an electronic sleeve built-in. it’s 16” x 11” x 5”, and very sturdy. It has an exterior zippered compartment with mesh bottle caddies on each end.  Interior is vinyl and easy to clean. Interior zippered compartment and padded section for electronics. The straps are nicely padded and adjustable. I love the colorful zipper pulls on this one. Really cute and NWT! 🌼